JAVA33 - プログラム倉庫

import java.awt.*;
import javax.swing.*;

public class ex03 extends JFrame {
   public static void main (String args[]) {
      new ex03();
   }

   public ex03() {
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      getContentPane().add(new MyJPanel());
      setSize(500,500);
      setTitle("練習");
      setVisible(true);
   }

   class MyJPanel extends JPanel {
      public MyJPanel(){setBackground(Color.white);}
      public void paintComponent(Graphics g) {
         super.paintComponent(g);
         g.drawString("Well Come to java world !!",200,200);
      }
   }
}